svg汉堡包图标切换

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html

css

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html

css

body {
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  background: radial-gradient(circle at center, #222, #000);
}
body #wrap {
  width: 100vw;
  height: 100vh;
  position: absolute;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.575);
  transition-delay: 1.85s;
  pointer-events: none;
  -webkit-filter: hue-rotate(70deg);
          filter: hue-rotate(70deg);
}
body #wrap:nth-of-type(2) {
  z-index: -1;
}
body #wrap:nth-of-type(2):before {
  content: 'click me';
  text-transform: uppercase;
  position: absolute;
  color: rgba(255, 255, 255, 0.75);
  z-index: 999;
  font-family: Futura;
  letter-spacing: 2px;
  font-size: 8px;
  left: 0;
  width: 100%;
  top: calc(50% + 40px);
  text-align: center;
  transition: opacity 0.4s ease-in-out, letter-spacing 0.3s ease-in-out, -webkit-transform 0.4s ease-in-out;
  transition: transform 0.4s ease-in-out, opacity 0.4s ease-in-out, letter-spacing 0.3s ease-in-out;
  transition: transform 0.4s ease-in-out, opacity 0.4s ease-in-out, letter-spacing 0.3s ease-in-out, -webkit-transform 0.4s ease-in-out;
  transition-delay: 2.5s, 2.5s, 0s;
  opacity: 1;
}
body #wrap:nth-of-type(2) svg path {
  transition-delay: 0s, 0s;
  stroke: #fff;
}
body #wrap:nth-of-type(2) svg:nth-of-type(2) path {
  transition-delay: 0.75s, 0.75s;
}
body #wrap:nth-of-type(2) svg:nth-of-type(3) path {
  transition-delay: 1.5s, 1.5s;
}
body input {
  position: absolute;
  width: 100px;
  height: 100px;
  z-index: 999;
  opacity: 0;
  cursor: pointer;
  left: 50%;
  top: 50%;
  -webkit-transform: translateX(-50%) translateY(-50%);
          transform: translateX(-50%) translateY(-50%);
}
body input:hover ~ #wrap:before {
  transition-delay: 2.5s, 2.5s, 0s;
  letter-spacing: 5px;
}
body input:checked ~ #wrap {
  -webkit-transform: scaleX(0.9);
          transform: scaleX(0.9);
}
body input:checked ~ #wrap:before {
  opacity: 0;
  -webkit-transform: translateY(25vh);
          transform: translateY(25vh);
  transition-delay: 0s, 0s, 0s;
}
body input:checked ~ #wrap:nth-of-type(2) svg path {
  stroke: #fff;
}
body input:checked ~ #wrap svg {
  transition-delay: 0s;
}
body input:checked ~ #wrap svg:first-of-type {
  -webkit-transform: translateY(0px);
          transform: translateY(0px);
}
body input:checked ~ #wrap svg:first-of-type path {
  transition-delay: 0.5s, 0.5s;
}
body input:checked ~ #wrap svg:nth-of-type(2) {
  -webkit-transform: translateY(0px) scaleY(-1);
          transform: translateY(0px) scaleY(-1);
}
body input:checked ~ #wrap svg:nth-of-type(2) path {
  transition-delay: 0.5s, 0.5s;
}
body input:checked ~ #wrap svg:nth-of-type(3) path {
  stroke-dasharray: 10000px;
  stroke-dashoffset: 10000px;
  transition-delay: 1s, 1s;
}
body input:checked ~ #wrap svg path {
  stroke-dasharray: 5000px;
  stroke-dashoffset: -4150px;
  stroke: yellow;
}

svg {
  position: absolute;
  width: 200px;
  transition: 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.575);
  transition-delay: 2s;
  margin-left: -9px;
}
svg:first-of-type {
  -webkit-transform: translateY(5px);
          transform: translateY(5px);
}
svg:nth-of-type(2) {
  -webkit-transform: translateY(-6px) scaleY(-1);
          transform: translateY(-6px) scaleY(-1);
}
svg:nth-of-type(2) path {
  transition: stroke-dasharray 1.2s ease-in-out, stroke-dashoffset 1.2s ease-in-out, stroke 1.2s ease-in-out;
  transition-delay: 0.6s, 0.6s, 0.6s;
}
svg:nth-of-type(3) {
  -webkit-transform: translateY(25px);
          transform: translateY(25px);
}
svg:nth-of-type(3) path {
  transition: stroke-dasharray .25s ease-in-out, stroke-dashoffset 0.25s ease-in-out, stroke 0.25s ease-in-out;
  transition-delay: 1.8s, 1.8s, 1.8s;
}
svg path {
  stroke: blue;
  stroke-width: 40px;
  fill: none;
  stroke-linecap: round;
  stroke-dasharray: 4400px;
  stroke-dashoffset: 4200px;
  transition: stroke-dasharray 1.5s ease-in-out, stroke-dashoffset 1.5s ease-in-out, stroke 1.5s ease-in-out;
}

JavaScript

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